Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"ban ca mong snippets" » "ban ca code snippets", "ban ca muong snippets", "ban va mong snippets", "ban ca ong snippets", "ban cua mong snippets", "ban can mong snippets", "ban cam mong snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("ban ca mong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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